cogl-texture-2d: Determine format before checking texture support

When entering cogl_texture_2d_new_from_bitmap the internal format can
be COGL_PIXEL_FORMAT_ANY. This was causing _cogl_texture_2d_can_create
to use an invalid GL format type. Mesa apparently ignores this but it
was causing errors when Cogl is compiled with debugging under NVidia.

http://bugzilla.openedhand.com/show_bug.cgi?id=2026

clutter/cogl/cogl/cogl-texture-2d.c

@@ -286,6 +286,9 @@ _cogl_texture_2d_new_from_bitmap (CoglHandle       bmp_handle,
 
   g_return_val_if_fail (bmp_handle != COGL_INVALID_HANDLE, COGL_INVALID_HANDLE);
 
+  internal_format = _cogl_texture_determine_internal_format (bmp->format,
+                                                             internal_format);
+
   if (!_cogl_texture_2d_can_create (bmp->width, bmp->height, internal_format))
     return COGL_INVALID_HANDLE;